Pet bed



FIG. 1 is a perspective view of a pet bed showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof; and,

FIG. 6 is a front elevational view thereof.

The bottom view is not being claimed. 

CLAIM The ornamental design for a pet bed, as shown. 